Jacob b



@uiten gtst getraut4 @ffice JACOB s. ROUGH, .Or LEBANON, Omo, ASSIGNORTo HiMsELF AN-D SAMUEL BRADEN, OF THE SAMEl PLAGE.

Lem Panna No. 62,957, dan@ March 19, 1867,

IMPROVEMENT 1N Donuts-Tissus.A

TO ALL WHOM IT MAY CIONCERNY:

Be it, known that I., JACOB B. HOUGH, of Lebanon, in theiconnty ofWarren, -in the State of Ohio, have vinvented certain new and usefulImprovements in Double-Trees ;A and do hereby declare that'the followingis a full and exact description thereof, reference being had to' the'accompanying drawings, und. to the lettersof `reference marked thereon.

The'drawing represents n top or plain view'ot` my improved double-treeas used upon n common wagon-tongue. The nature of myV inventionconsi-sts in theurrangementof o curvcdfulcrum-block und gude-rods, ortheir equivalents, in combination with n. double-tree, in such-a manneras to vary the pointof draught, forithe purpose and in the mannerhereinafter described; also in the use of u stay-block in-com'binaticnwith the compensating double-tree and fulcrum block, all of which willbe fully described in this specification. l

. To enable others to' make and use my invention, I 'will proceed todescribe its construction und operation I construct my'dou'bletree inthe usual forni, :is indicated in the drawing' by the letter D, andplace it centrally upon the tongue und houndsiA B C. In the upper -sideof the double-tree D there are two staples inserted, as seen at b b. vEis the fulor'um-block, formed, as indicated in the drawing, with itsrear fece.A sgoinst which the front edg'eotl` the double-treeworks,curved in the nrc of` s circle. F is the stayblock, and is of the sumethickness of the double-treeond the.. fulcrum-bloclglL- endthesetmoLhlocks aire irmly seen-red by bolts-tothetongne and. hounds.The double-tree is held in place by the curved rods a a, which aresecurely faistened to the blocks E end-.1?, and pass through the staplesb b, as shown in thedrcwing. Flach end of doubletree. D'

is provided with u. single-tree in the usual manner, for attac-hing thehorses to the wegen pr carriage.'

Frontv the foregoing description it will be understood thct in using myimproved doubie-trecs the changing point of draught will alwayscorrespond with the difference in pou/eruppliedto the ends otl thedouble-tree. Ir. every instance and condition the double-tree willadjust itselt` upon the fulcrum-block in such a. manner as to favor theless powerful horse, because, as the more powerful of the two will'lre'pin'ndvanc'e of the other, the

- point of drought will correspondingly.lapprouch and remain vinnearer'prorrimity .tol the most advonc'ed'of the animals'. AIn otherwords, the foremost horse will necessarily have the short end ot' thelever, while the rearmost will-draw from the longer end. In the event ofthe entire suspension of power uto'ne endet' the'duble-trec, then the.stoy-block will Operate to check and hold the double-tree fromoscillating to any considerable ex .teut, serving the purpose 'ofstay-chains, which are generally required t'or the sume purpose. Therenreother obvious advantages to be derived from the use of my invention,it being well adapted for breaking young animals to work.. Its use isnot limited to the'vfvugonlor c arrige, but may' be applied to a.long'clevis for the ploughn the same manner that the parts re attachedto the wagon. My improveddouble-trees nre not only simple inconstruction, but much cheaper than any device of the ltind thuthnmbeenintroduced to my observation. I

Hoving now fully described the construction undl manner of using myix'ivention, what I claim, nnddesi're to secure by Letters Patent, is -vv -1 v y 1. flho combination of the double-tree D lwith thefulcrum-,block'E and guides -a a, constructed, arranged, and'A operating.in the manner 'and for the purpose described; v A I 2. I claim thestay-block F, in-combination WiththeV compensating doubletree andits'fulcrnm-block, arranged to operate conjointly withthe guide-rods asubstantially as and 'for the purpose set forth.A In testimony whereof Ihave hereunto set my hand this 9th day of December, A. D. 1865'.

; l J. B. HOUGH.

Witnesses;

JN0. V. H, Lnwrs, .lsAAo ODBLL.

